J.R. Smith laid down a pretty damning indictment of the New York Knicks after their 23-point loss to the Golden State Warriors on Friday.

"It's not a mental thing, it's a heart thing," Smith said after the Knicks gave up 73 first-half points in the loss.

"Guys get open shots, [they're] walking through the lane, running around, slapping high-fives, laughing, joking. When you're supposed to be a team trying to make the playoffs, you ain't gonna win. It ain't gonna happen like that. You gotta play with effort, play with heart. I mean, I'm not condoning knocking somebody down and hurting nobody. But we gotta do something. We gotta stick up for ourselves. We're just letting people do what they want to do."